Golden State Warriors guard Monta Ellis' ankle injury was the result of a moped accident and did not occur while he was playing pickup basketball, the San Francisco Chronicle reported, citing sources close to the team.

Ellis, 22, who signed a six-year, $66 million contract extension with the Warriors during the offseason, tore a ligament in his left ankle and sustained a high-ankle sprain in what one of the sources said was a "low-speed" moped accident, according to the report. He underwent surgery in late August and is expected to be sidelined for another two months.

The Warriors and Ellis' agent, Jeff Fried, declined to comment on the report, according to the newspaper.

Riding a moped is prohibited under the uniform player contract, which means the Warriors could tear up Ellis' contract. But according to sources, the team and Ellis are still working through the situation. A decision on discipline won't be made until next week, according to the report.

The circumstances surrounding Ellis' injury were not clear, even to team officials, in the days immediately following the incident. Ellis initially told team vice president Chris Mullin that he got hurt during a pickup basketball game in Jackson, Miss. But according to reports, team officials were skeptical about Ellis' explanation because of the severity of the injury.